Mechanism for working pulpous material



I Jan. 25, 1927. 1,615,426

H. G. WALKER ET AL MECHANISM FOR WORKING PULPOUS MATERIAL Original Filed y 9. 1924 Patented Jan. 25, 1927.

UNITED STATES PATENT OFFICE.

HOWARD GEORGE WALKER, OF LA GRANGE, AND ALBERT THOMAS MARCH, 01 WEST- ERIN SPRINGS, ILLINOIS, ASSTGNORS TO WESTERN ELECTRIC COMPANY, INCOR- PORATED OF NEW YORK, N. Y., .A CORPORATION OF NEW YORK.

MECHANISM FOR WORKING PULIO'US MATERIAL.

npplication fled lay 9, 1924,8eria11lo. 711,996. Renewed October 20, 1926.

This invention relates to improvements in mechanism for working pulpous material, and more particularly to mechanism for forming such material to constitute a homogeneous coating for cores in strand form, such as wire and the like.

Mechanisms made in accordance with this invention are particularly well adapted for use in connection with the method and apparatus for coating cores disclosed in the co-pendi-ng application of H. G Walker, Serial No. 621,242, filed February 26, 1923, but it is to be understood that the invention is not limited to such use, but only in so far as is defined by the appended claims.

The primary object of the invention is to (provide a forming mechanism of simple an substantial construction.

. Another object of the invention is to provide a forming mechanism which will operate upon the pulpous material so as to form it into a homo eneous and uniform coating.

A further 0 je'ct of the invention is to provide a forming mechanism which may be operated at high speed and will not strip.

the coating material from the core during theforming operation.

A forming mechanism embodyin the invention comprises a plurality 0 collars held together in spaced relation by a plurality of rods. The collars are adapted to accommodate a. traveling core to which pulpous material has been applied. A member held against displacement relative to the collars and a resilient member mounted upon one of thecollars co-act to work the pulpous material into a coating which conforms to the shape of the core, when the forming mechanism is rotated around an axis coincident with the axis of the core.

Other objects of the invention will become apparent as the detaildescription progresses, reference being had to the accompanying drawing, wherein Fig. 1 is a central longitudinal section taken through a forming mechanism embodying the invention;

Fig. 2 is a section taken on line 2-2 of Fig. 1; Figs. 3 and .4 are, transverse sectional views taken on lines 3-3 and 4-4, respectively, of Fig. 1;

- Figs. 5 and 6 are enlarged sectional views illustrating the manner in which the pulp is applied to the core before it is delivered to the forming mechanism, and

F i s. 7 and 8 are enlarged sectional views showing the forming of a pulp coating during the forming operation and after the iompletion of the forming" operation, respecve y.

The formin mechanism shown in the accompanying rawing is especially adapted to operate in conjunction with apparatus shown in the aforementioned application of H. G. Walker, Serial No. 621,242, filed February 26, 1923, which apparatus is adapted to apply pulpous material to a core and'comprises a foraminous member and then an additional amount of pulpous material is deposited upon the core and the foraminous container. The pulp, so deposited, and the core are then brought into -contact with one of the squeezing rolls which cooperates with the ,foraminous member to squeeze out the free liquid,'so to speak, in the pulp coating. The partially dried pulp adheres to the felt of the s ueez ing roll in, the form .of' a ribbon wit the core substantially centrally located therein as shownin Fig. 5 of the accompanying drawing, and the core with the ulp ribbon attached thereto passes around t e roll and between it and its cooperating roll, the contour imparted to the ribbon by the squeezing rolls being shown in Fig. (i.

The forming mechanism embodying the features of the present invention is designed to receive the core and its ribbon from the squeezin rolls and to wrap the projecting edges 0 the ribbon around the core and around each other until it' conforms substantially to the shape of the core. The

appearance of, the coating after it. is first acted upon by the forming mechanism is shown in Fig. 7, and the appearance thereof.

after the formingaction is completed is shown in Fig. 8.

Referring .to the drawings, the forming mechanism comprises a plurality of collars 10 and 11 held. together in spaced relation by means. of rods 12. Integral with each of the collars 10 and 11 is a sleeve 13 and 14, respectively, the sleeves 13 and 14 being rotatably mounted in suitable bearings, 15

and 16. A pulley (not shown) may be secured to either of the sleeves 13 and 14 to provide means ,for driving the forming mechanism. .A plate 17 interposed between the collars and 11 has one of its ends rigidly secured to the collar 10. by means of .a pluralit of screws18, the other end of the plate eing rigidly secured to the collar 11 by means of a plurality of serews'19. A resilient plate 20 disposed in opposed relation to'the plate 17 has one of its end rigidly secured to the collar 10 by a plurality of screws 21, the other end of the plate 20 being freeand tending to spring into engagement with the plate 17. As shown in Fig. 1, the plates 17 and 20 are adapted to receive a core 22 carrying a ribbon :23 of pulpous material. This core with its ribbon of pulpous material may be supplied by any suitable apparatus, such as for instance the apparatus shown in the copending application of H. G. Walker, Serial No. 621, 242,'filed February 26, 1923. The core is advanced through the collar 10 and the pulpous material carried by it is engaged by the plates 17 and 20, which wrap the projecting edges of the ribbon around the core and around each other until it conforms substantially to the shape of the core as shown in.Fig. 8. The ends of the plates 17 and 20 which first receive the core and its ribbon are flared outwardl so as to adually'wrap the edges of the rib on aroun' the core without strip ing it from the core, the appearance of t e coating after it has been acted upon by the flared ends of the plates being shown in Fig. 7. Of course, it is understood that the forming mechanism is rotated rapidly around the coated core and the ribbon duri the forming operation.

'It will e noted that the major portion of the plate 17 is disposed substantially parallel to the path of the core and that the plate 20 functions as a forming member as it presses the pulp covered core a ainst the plate 17 However, i in the preterred embodiment of the invention, the plate 17 is spaced from the axis of rotation of the 1 collars 10 and 11 a distance substantially equal to one-half of the diameter of the finished article produced by the formin mechanism. Therefore, the plate 17 ten s finished article produced by the forming coating.

It will also be noted that the collars 10 and 11, together with the spacing rods 12, constitute a carrier for the plates 17 and 20, the plate 17 being secured against displace ment relative to the carrier, and the plate 20 hein mounted in the carrier, but being adapted to function as a pressure member.

What is claimed is:

1. In a mechanism for working pulpous material on a core, a'memberengaging said material and secured against displacement toward or away from the core, and a form, and a pressure member ing member engaging said material, the forming member being rotatable around the core. 2. In a mechanism for working pulpous material on a core, a member engaging said material and secured against displacement toward or away from the core, and a forming member engaging said material, the members being rotatable around the core.

3. In a mechanism for working pulpous material on a core, a member engaging said material and secured against displacement toward or away from the core, and a pres sure member engaging said material, one of the members being rotatable around the core;

4. In a mechanism for working pulpous material on a core, a member engaging said material and secured against displacement toward or away from the'core, and a pressure member engaging said material, the members being rotatable around the core.

5. In a mechanism for working pulpous material on a core, a member engaging said material and secured against displacement toward or away from the core, and a resilient member engaging said material, said members being rotatable around the core.

6. In'a mechanism for working pulpous material on a. core, a member engaging said material and secured against displacement toward or away from the core, and a pressure member engaging said material and disposed in opposed relation with res ect to the first-mentioned member, the vmem ers being rotatable around the core.

7. In a mechanism for working pulpous material on a core, a member en aging said material and secured against displacement toward or away from the core, and a pressure member engagin said material and disposed in o posed reIation with respect to the first-mentioned member, the members being rotatable around a common axis'to shape the material around the core.

displacement toward or away from the core, an

a resilient member slidably engaging said material and cooperating with the firstmentioned member to shape said material so that it conforms to the core.

10. In a mechanism for working ulpous material on a core, a member slida ly engaging said material and secured against displacement toward or away from the core,

slidably engaging the material and disposed in opposed relation with respect to the first-mentioned member. 7

11. In a mechanism for working pulpous material .on a core, amember slidably engaging said material and secured against vdis lacement toward or away from the core,

an a resilient member slidably engaging the material and disposed in opposed re? lation with respect to the first-mentioned member.

12. In a mechanism for working pulpous material on a core, a member slidably engaging the material and secured against.

displacement toward or away from the core,

and a pressure member slidably engagingand a resilient member slidably engaging said material and disposed in opposed relation with respect to the first-mentioned member, the members being rotatable around the core.

14. In a mechanism for working pulpous material on a core, a carrier rotatable around the-core, a member secured against displacement relative to the carrier and disposed to engage said material, and a pressure member mounted in the carrier and disposed to engage said material.

15. In a mechanism for working pulpous material on a core, a carrier rotatable around the core, a member secured against displacement relative to the carrier and disposed to engage said material, and a resilient member mounted in the carrier and disposed to engage. said material:

In witness whereof, we hereunto subscribe our names this 29th day of April, A. D.

HOWARD GEORGE WALKER. ALBERT THOMAS MARCH. 

